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        取得磁碟機之Volumn及SerialNumberaccess教程

        字號:

        適用ACCESS97、2000
            這兩項磁碟機資料須使用API函數(shù)方可取得,代碼如下:
            Private Declare Function GetVolumeInformation Lib "kernel32" Alias "GetVolumeInformationA" (ByVal lpRootPathName As String, ByVal lpVolumeNameBuffer As String, ByVal nVolumeNameSize As Long, lpVolumeSerialNumber As Long, lpMaximumComponentLength As Long, lpFileSystemFlags As Long, ByVal lpFileSystemNameBuffer As String, ByVal nFileSystemNameSize As Long) As Long
            Function GetVolumn(X As String) As String
             If Len(X) < 3 Then
             X = Left(X, 1) & ":\"
             Else
             X = Left(X, 3)
             End If
             Dim nRet As Long, VolName As String, VolSN As Long, MaxCompLen As Long
             Dim VolFlags As Long, VolFileSys As String
             VolName = Space$(256)
             VolFileSys = Space$(256)
             nRet = GetVolumeInformation(X, VolName, Len(VolName), _
             VolSN, MaxCompLen, VolFlags, _
             VolFileSys, Len(VolFileSys))
             If nRet = 1 Then
             GetVolumn = VolName
             Else
             GetVolumn = ""
             End If
            End Function
            Function GetNumber(X As String) As String
             If Len(X) < 3 Then
             X = Left(X, 1) & ":\"
             Else
             X = Left(X, 3)
             End If
             Dim nRet As Long, VolName As String, VolSN As Long, MaxCompLen As Long
             Dim VolFlags As Long, VolFileSys As String
             VolName = Space$(256)
             VolFileSys = Space$(256)
             nRet = GetVolumeInformation(X, VolName, Len(VolName), _
             VolSN, MaxCompLen, VolFlags, _
             VolFileSys, Len(VolFileSys))
             If nRet = 1 Then
             GetNumber = VolSN
             Else
             GetVolumn = ""
             End If
            End Function
            前面的Declare陳述式宣告一個API函數(shù)(GetVolumeInformation),可取得磁碟機的兩項資料。